I have also a pure chemical question.
My calcium levels have stayed below 400 for years and for a few months I've replenished every drop with kalkwasser on top of what my calcium reactor produces. The levels have been at 400 for a month and that is a record for my tank. Alk is at 8 and Mg at 1350.
I know the correction methods and have tried them without a long term success.
I'm looking into possibilities that my long term toxic dino soup could have an effect on calcium levels or the test kits.
My tank has a history of slow and no SPS coral growth so perhaps there is a connection.
I've also noticed that dinos have a big impact on SPS coral health.
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